DE638408C - Device for preventing the fogging of windshields, in particular on motor vehicles - Google Patents

Device for preventing the fogging of windshields, in particular on motor vehicles

Info

Publication number
DE638408C
DE638408C DED67449D DED0067449D DE638408C DE 638408 C DE638408 C DE 638408C DE D67449 D DED67449 D DE D67449D DE D0067449 D DED0067449 D DE D0067449D DE 638408 C DE638408 C DE 638408C
Authority
DE
Germany
Prior art keywords
nozzle
kept clear
windshields
point
fogging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DED67449D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Publication date
Priority to DED67449D priority Critical patent/DE638408C/en
Application granted granted Critical
Publication of DE638408C publication Critical patent/DE638408C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jet Pumps And Other Pumps (AREA)

Description

<-;■*&' ■<-; ■ * & '■

Die Erfindung bezieht sich auf eine Einrichtung zum Verhindern des Beschlagens von Windschutzscheiben o. dgl., insbesondere an Kraftfahrzeugen.The invention relates to a device for preventing fogging Windshields or the like, in particular on motor vehicles.

Zu diesem Zweck ist gemäß der Erfindung die der Entlüftung des Wageninnern dienende Saugdüse in der Nähe der klar zu haltenden Stelle an der Scheibe derart angeordnet, daß die angesaugte Luft an der klar zu haltenden ίο Stelle vorbeistreicht oder doch wenigstens dort eine Zone bewegter Luft bildet.For this purpose, according to the invention, the ventilation of the interior of the car is used Suction nozzle arranged in the vicinity of the point to be kept clear on the disc in such a way that the sucked in air sweeps past the place to be kept clear ίο or at least at least there forms a zone of moving air.

Man kann hierbei die Entlüftungsdüse gegen das Karosserieinnere durch eine zusätzliche Scheibe abschirmen, die sich über die klar zu haltende Stelle erstreckt. Die klar zu haltende Schieibe und die Zusatzscheibe bilden einen vom Saugzug der Entlüfterdüse beherrschten Spalt.You can use an additional vent nozzle against the inside of the body Shield the pane that extends over the area to be kept clear. The one to be kept clear The disk and the additional disk form one dominated by the induced draft of the ventilation nozzle Gap.

Die Luft durch die Düse kann weiter gemaß der Erfindung dadurch abgesaugt werden, daß die Entlüfterdüse mit einer ejektorartig mit dem Auspuffrohr zusammenwirkenden Saugeinrichtung in Verbindung steht.The air through the nozzle can be sucked out further according to the invention, that the vent nozzle interacts with an ejector-like with the exhaust pipe Suction device is in connection.

Die Zeichnung gibt rein grundsätzlich ein Ausführungsbeispiel der neuen Einrichtung wieder. Dabei istThe drawing basically gives an embodiment of the new device again. It is

Abb. ι ein Schnitt durch die Gesamtanordnung, Fig. Ι a section through the overall arrangement,

Abb. 2 eine Draufsicht der Scheibe mit der Zusatzscheibe.Fig. 2 is a plan view of the disk with the additional disk.

Die Windschutzscheibe ß ist im Rahmen &The windshield ß is in the frame &

gefaßt. An der Stelle der Scheibe a, welche klar bleiben soll, ist in einigem Abstand von ihr in an sich bekannter Weise eine zweite Scheibe i angebracht. An der unteren Seite des durch die Scheiben α und i gebildeten .collected. At the point of the disk a, which should remain clear, a second disk i is attached at some distance from it in a manner known per se. On the lower side of the formed by the disks α and i .

Hohlraumes mündet eine Saugdüse k. An diese schließt sich die Absaugleitung m, in welche eineEjektordüse 0 eingebaut ist, durch welche aus dem Auspufftopf η die Auspuffgase abströmen, die in dem Rohr m, in der Düse k und im Zwischenraum zwischen den beiden Scheiben λ und / einen Saugluftstrom erzeugen. A suction nozzle k opens into the cavity. This is followed by the suction line m, in which an ejector nozzle 0 is installed, through which the exhaust gases flow out of the muffler η and generate a suction air flow in the pipe m, in the nozzle k and in the space between the two disks λ and /.

Das Absaugen kann selbstverständlich auch in irgendeiner anderen Weise bewirkt werden, z. B. durch Anschluß an das Unterdruckrohr des Vergasers des Motors. Es kann auch die Scheibe I wegfallen; in diesem Fall wird dann der der Düsenmündung benachbarte Teil der Scheiben, wenn in der Düse Unterdruck herrscht, vom Niederschlag frei bleiben.The suction can of course also be effected in some other way, e.g. B. by connection to the vacuum pipe of the carburetor of the engine. Disk I can also be omitted; in this case the part of the disks adjacent to the nozzle orifice will remain free of precipitation when there is negative pressure in the nozzle.

Claims (3)

Patentansprüche:Patent claims: 1. Einrichtung zum Verhindern des Beschlagens von Windschutzscheiben, insbesondere an Kraftfahrzeugen, dadurch gekennzeichnet, daß die der Entlüftung des Wageninnern dienende Saugdüse (k) in der Nähe der klar zu haltenden Stelle an der Scheibe derart angeordnet ist, daß die durch, sie angesaugte Luft längs der klar zu haltenden Stelle vorbeistreicht oder zu mindestens dort eine Zone bewegter Luft bildet.1. A device for preventing the fogging of windshields, in particular on motor vehicles, characterized in that the suction nozzle (k) serving to vent the interior of the car is arranged in the vicinity of the point to be kept clear on the window in such a way that the air sucked in by it sweeps past the point to be kept clear or at least forms a zone of moving air there. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Entlüfterdüse (k) gegen das Wageninnere durch eine über die klar zu haltende Stelle sich erstreckende zusätzliche Scheibe (z) abgeschirmt ist, welche zwischen sich und der klar zu haltenden Scheibe einen vom Saugzug der Entlüfterdüse beherrschten Spalt bildet.2. Device according to claim 1, characterized in that the vent nozzle (k) is shielded from the inside of the car by an additional disc (z) extending over the point to be kept clear, which between itself and the disc to be kept clear is one of the induced draft Bleeder nozzle forms controlled gap. 3. Einrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Entlüfterdüse (A) mit einer ejektorartig mit dem Auspuff topf (ß) zusammenwirkenden Saugeinrichtung (o) in Verbindung steht.3. Device according to claims 1 and 2, characterized in that the Bleeder nozzle (A) with an ejector-like cooperating with the exhaust pot (ß) Suction device (o) is in connection.
DED67449D Device for preventing the fogging of windshields, in particular on motor vehicles Expired DE638408C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED67449D DE638408C (en) Device for preventing the fogging of windshields, in particular on motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED67449D DE638408C (en) Device for preventing the fogging of windshields, in particular on motor vehicles

Publications (1)

Publication Number Publication Date
DE638408C true DE638408C (en) 1936-11-14

Family

ID=7059719

Family Applications (1)

Application Number Title Priority Date Filing Date
DED67449D Expired DE638408C (en) Device for preventing the fogging of windshields, in particular on motor vehicles

Country Status (1)

Country Link
DE (1) DE638408C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872460C (en) * 1949-03-24 1953-04-02 Vdo Schindling Pointer measuring device for motor vehicles
US2659942A (en) * 1948-03-25 1953-11-24 Lauren E Iverson Windshield warmer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659942A (en) * 1948-03-25 1953-11-24 Lauren E Iverson Windshield warmer
DE872460C (en) * 1949-03-24 1953-04-02 Vdo Schindling Pointer measuring device for motor vehicles

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